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Metra 70-8114 Steering Wheel Control Harness

Metra's 70-8114 harness allows you to connect the steering wheel audio controls in 2003-up Toyota-built vehicles (if equipped) to a new car stereo without having to splice into your factory wiring.

To use this harness, you'll need the Axxess ASWC-1 steering wheel control interface (sold separately) and a compatible aftermarket radio (won't work with Parrot, Rosen, or Car Show radios). You'll also need a vehicle-specific wiring harness to install your aftermarket stereo. We'll show you the correct harness when you enter your vehicle information into our online vehicle selector.

Once you've connected this harness to your new receiver's rear RCA auxiliary input, you'll also be able to use the handy auxiliary input in your Toyota. This adapter will work with any 2003-up Toyota, Lexus, and Scion vehicle equipped with steering wheel audio controls. Warranty: 60 days.

Important note: The aftermarket radio you install must have a rear RCA auxiliary input if you wish to retain your factory auxiliary input.

Note: Most vehicles will require additional installation parts  please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

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Features

SWC Add-on Harness for Toyota/Lexus/Scion: When installing an aftermarket radio
in your 2003-up Toyota, Lexus, or Scion vehicle, the Metra 70-8114 harness
allows you to
retain your factory installed steering wheel controls without having to
splice into your vehicle's factory wiring (120ASWC1, required
& sold separately). In addition, the 70-8114 harness includes stereo male RCA
connectors to allow you to retain your factory installed
3.5mm jack (your aftermarket radio must also have a rear-panel stereo Aux
input).

Note: This is an optional harness; a main
power and speaker harness is still required and sold separately. Please visit the
Crutchfield Car Selector for your specific type of vehicle.

Wire Code Chart:

Wire Color

Function

Red

+12 Volt Accessory

Black

Chassis Ground

3.5mm Jack (male)

SWC output

White RCA (male)

Aux input (left)

Red RCA (male)

Aux input (right)

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Metra 70-8114

There was a break in the red radio control wire somewhere between the aftermarket harness adapter and the jack plug in. I had to splice around it to get it to work. I'm sure they would have sent me another but I was ready to get done.

Pros:Crutchfield instructions were easier than factory's. Didn't have to splice any of the factory wires.

Awesome

This part of my recent order was awesome. Hated radio, but the steering wheel controls worked flawlessly first attempt.

Pros:Worked!

Cons:Not sure if it's supposed to work like this, but a long-press on the next/prev buttons doesn't seek through a track. Just next track/prev track. Might be operator error or misunderstanding though!

Just what you need to keep the factory steering wheel controls

An easy install. Everything you need to keep the factory steering wheel controls in your car/truck when used with the ASWC-1. instructions were very good and hooking it up couldn't be easier. Works like a charm and everything works like it should.

Made the Install Easy

Great wiring instruction for use with the ASWC-1. A lot easier that trying to make the universal wiring instructions from the ASWC-1 work. This made it simple, almost too easy. with this you will not need anything other than the little back box for the ASWC-1 kit.

Easy to install

Easy to install after a little studying, thinking, and confirming with tech support. Installed this harness with steering wheel control and factory amp bypass. No single instruction available - even after figuring it out, had to call Crutchfield to confirm my plan was right.

Pros:Easy to install.

Cons:Must call Crutchfield if installing with other harnesses [wheel control and factory amp bypass]

Metra 70-8114 Factory Integration Adapter

Appears like it would work, designed to eliminate cutting 3 wires from factory wiring, but once I went to install the plug was the incorrect size. Called Crutchfield and emailed them a pic, they were not sure why the plug was a different size, but refunded me the price of this item and let me keep it. Made sure I had instructions how it install without this item.

Very good cable harness

My specific product (for 2009 Toyota Tacoma) allowed the ability to not create wire connections (soldering or crimping) in the vehicle and allows you to simply plug into the wiring harness for the steering wheel controls and mate up to the the ASWC1 steering wheel control module and head unit (radio).

Pros:Works as expected.
No splicing of wires in the vehicle.

Cons:The RCA plugs could have come with some plastic/rubber plug covers as these will not be usable for everyone (like myself).
Instructions are not self-evident on what plug goes where. I am not a person who just slaps together connections just because "they look like they go there". A phone call to Crutchfield solved my questions.

Works great, don't forget the resistor!

The directions come in a PDF with an email confirmation of your order; so I didn't follow them during the initial installation. So I missed a crucial step of installing a small resistor on the car's factory wire harness which ensures compatibility with the car's built in multifunction display.

Did the job

Used this to install a replacement Pioneer stereo to the factory harness on a 2003 Toyota Sequoia. Don't over think it and this works as intended. This probably should have been a lot easier for me, but with several integration adapters (stereo to car harness, stereo to steering wheel harness) it was a little confusing. Called Crutchfield support and they worked me through it. Did not have to splice anything.

Excellent product

This made the installation too simple. In my 2011 Tacoma I installed a JVC KWNT510hdt and the Axxess ASWC-1 to keep my steering wheel controls. I pre-soldered all my connections and my installation inside the vehicle was about 20 minutes total. Crutchfield instructions were way better than the ones included with the product.

Wiring for Steering wheel controls

This comes with 2 harnesses, one you will use and one you will not. At most you might have to use 3 wires in the bundle. It has a 1/8" phono jack to interface with the radio (JVC) I ended up heat shrinking mione so they would not pull apart. Over all easy to hook up.

Pros:Comes with 2 cables sets, Pick the one you need.

Cons:This harness requires you to cut into your factor harness for proper connection. It should have connector that you can plug in to the factory plug. Was not wild a phono jack in the dash can some loose or pick up noise over time.

Great addition to my System

This adapter was very helpful when connecting my factory steering wheel controls to my aftermarket head unit. Would recommend this to anyone with a tC who doesn't wanna mess with all the wire splicing.

Perfect on a 2005 Rav4! Wish I bought it sooner.

If you're replacing the factory stereo in your vehicle, and want to use an adapter to continue using the steering wheel controls, save yourself the headache and buy this adapter (if it is compatible with your car). I spent hours trying to figure out the confusing instructions for the control adapter, and then troubleshoot the wiring connections that I had to splice into the original factory wiring. With this adapter the only wiring I needed to do was to tie into the power connections that made with the aftermarket radio adapters. Now the whole system is easily disconnected from the factory plugs in the dash, which is a great perk for when I move on to the next vehicle and want to put the factory stereo back in place.

Pros:Perfect fit with factory steering wheel control plug.
Maintained same wire coding scheme as the control adapter I used.
Only needed to solder power connections, all others were removable plugs or were pre-wired.

Cons:The extra RCA connectors aren't necessary unless you have an AUX input on the back of your stereo, which just adds more wires in the dash.
Was not included or promoted as an add-on by Crutchfield when I purchased the control adapter.

2004 Sienna XLE Steerign wheel adapter

I bought an ASWC for my steering wheel but I have to splice in the wiring of my car. To prevent splicing, I bought this adapter for the adapter and it connects right into the steering wheel connectors and plugged right in the back of my after market Navigation unit.

Worked great on 2005 Toyota Rav4!

Worked great on Toyota Rav4! I had it installed wrong on a JVC radio at first and found the instructions on the Axxess website to resolve the issue. The 3.5mm male plugs into a special 3.5mm female and a wire attaches to the JVC radio harness, which keeps the rear aux port of the JVC radio open for Bluetooth or other things.

Pros:Works great and eliminates splicing. Only have to connect ignition power and ground.

Cons:Had to use Axxess website for further instructions. Manual not very clear.

This makes it easy, so worth it.

This part is worth every penny. If you want to integrate steering wheel controls into an aftermarket head unit, this Toyota specific adapter makes it super easy. Just plug it into the car's wiring harness, then plug the 3.5mm plug into the head unit (Alpine CED-136BT in my case) and you're done.My application was a 2006 Toyota Highlander Hybrid Limited, and all I had to do was press the volume up button once everything was installed, and it figured out the rest. The guy at the local shop was telling me how hard it is to make steering wheel controls work with aftermarket head units and wanted an extra $50 to do it. I do all my own work, it's easy just try it!

Metra Toyota-specific Harness - 2010 Tacoma Dbl Cab

Used this in conjunction with the Metra universal steering wheel control accessory. Was a plug and chug, nothing to splice, everything fit into where it was supposed to go. Installed clean on a 2010 Tacoma with no JBL system and new Pioneer DEH-P8400BH. Seemed to not learned all the buttons when initially hooked up, but gained functionality on the second try. My up/down buttons do not scroll through the pre-set tuner stations. Up/Down buttons do change the tuner frequency and works fine scrolling through songs when in USB mode.

Pros:Easy set-up. Plug and chug, nothing to splice. Once you have steering wheel controls, it tough to give up their functionality.

Cons:Price, considering it is used in conjunction with the already pricey accessory.